riscv: move sifive_l2_cache.c to drivers/soc

The sifive_l2_cache.c is in no way related to RISC-V architecture
memory management.  It is a little stub driver working around the fact
that the EDAC maintainers prefer their drivers to be structured in a
certain way that doesn't fit the SiFive SOCs.

Move the file to drivers/soc and add a Kconfig option for it, as well
as the whole drivers/soc boilerplate for CONFIG_SOC_SIFIVE.

Fixes: a967a289f169 ("RISC-V: sifive_l2_cache: Add L2 cache controller driver for SiFive SoCs")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
[paul.walmsley@sifive.com: keep the MAINTAINERS change specific to the L2$ controller code]
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>

diff --git a/MAINTAINERS b/MAINTAINERS
index a049abc..4bc8405 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6027,6 +6027,7 @@ M:        Yash Shah <yash.shah@sifive.com>
 L:     linux-edac@vger.kernel.org
 S:     Supported
 F:     drivers/edac/sifive_edac.c
+F:     drivers/soc/sifive_l2_cache.c
 
 EDAC-SKYLAKE
 M:     Tony Luck <tony.luck@intel.com>

diff --git a/arch/riscv/mm/Makefile b/arch/riscv/mm/Makefile
index 3c8b332..a1bd95c 100644 (file)
--- a/arch/riscv/mm/Makefile
+++ b/arch/riscv/mm/Makefile
@@ -10,7 +10,6 @@ obj-y += extable.o
 obj-$(CONFIG_MMU) += fault.o
 obj-y += cacheflush.o
 obj-y += context.o
-obj-y += sifive_l2_cache.o
 
 ifeq ($(CONFIG_MMU),y)
 obj-$(CONFIG_SMP) += tlbflush.o

diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig
index 417dad6..5c82723 100644 (file)
--- a/drivers/edac/Kconfig
+++ b/drivers/edac/Kconfig
@@ -462,7 +462,7 @@ config EDAC_ALTERA_SDMMC
 
 config EDAC_SIFIVE
        bool "Sifive platform EDAC driver"
-       depends on EDAC=y && RISCV
+       depends on EDAC=y && SIFIVE_L2
        help
          Support for error detection and correction on the SiFive SoCs.
 

diff --git a/drivers/soc/Kconfig b/drivers/soc/Kconfig
index 833e04a..1778f8c 100644 (file)
--- a/drivers/soc/Kconfig
+++ b/drivers/soc/Kconfig
@@ -14,6 +14,7 @@ source "drivers/soc/qcom/Kconfig"
 source "drivers/soc/renesas/Kconfig"
 source "drivers/soc/rockchip/Kconfig"
 source "drivers/soc/samsung/Kconfig"
+source "drivers/soc/sifive/Kconfig"
 source "drivers/soc/sunxi/Kconfig"
 source "drivers/soc/tegra/Kconfig"
 source "drivers/soc/ti/Kconfig"

diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile
index 2ec3550..8b49d78 100644 (file)
--- a/drivers/soc/Makefile
+++ b/drivers/soc/Makefile
@@ -20,6 +20,7 @@ obj-y                         += qcom/
 obj-y                          += renesas/
 obj-$(CONFIG_ARCH_ROCKCHIP)    += rockchip/
 obj-$(CONFIG_SOC_SAMSUNG)      += samsung/
+obj-$(CONFIG_SOC_SIFIVE)       += sifive/
 obj-y                          += sunxi/
 obj-$(CONFIG_ARCH_TEGRA)       += tegra/
 obj-y                          += ti/

diff --git a/drivers/soc/sifive/Kconfig b/drivers/soc/sifive/Kconfig
new file mode 100644 (file)
index 0000000..58cf8c4
--- /dev/null
+++ b/drivers/soc/sifive/Kconfig
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+
+if SOC_SIFIVE
+
+config SIFIVE_L2
+       bool "Sifive L2 Cache controller"
+       help
+         Support for the L2 cache controller on SiFive platforms.
+
+endif

diff --git a/drivers/soc/sifive/Makefile b/drivers/soc/sifive/Makefile
new file mode 100644 (file)
index 0000000..b5caff7
--- /dev/null
+++ b/drivers/soc/sifive/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-$(CONFIG_SIFIVE_L2)        += sifive_l2_cache.o

diff --git a/arch/riscv/mm/sifive_l2_cache.c b/drivers/soc/sifive/sifive_l2_cache.c
similarity index 100%
rename from arch/riscv/mm/sifive_l2_cache.c
rename to drivers/soc/sifive/sifive_l2_cache.c